SUNWAYFOTO Index Stop bar SSB-02 for Arca/RRS Compatible Rail Sunway Nodal SSB2

I bought this stop bar in the absence of being able to find the product I've used before and like very well, a Leofoto DC-12 index/stop bar (https://www.amazon.com/gp/product/B08179YN83) which is unavailable at the moment and also nearly triple the price. So, please note that this Sunywayfoto stop bar is NOT adjustable but rather machined to one specific size that requires an open-ended Arca-Swiss dovetail plate to slip onto, rather than being able to attach it over the plate and then closing it down as a clamp would (more like the Leofoto DC-12). So, depending upon your existing dovetails and how accurately they have been machined for the Arca-Swiss standard, you may experience difficulty in mounting this SSB-02 stop bar. I'm guessing that within the line of Sunwayfoto products with Arca-Swiss dovetails, it may fit them without issue, but I have a range of A-S dovetail products from various manufacturers that I'd like to see this item fit universally. That is where an adjustable clamp style stop bar has merit also. I'm not faulting this product however, because it is clear from the photo of it that this is non-adjustable and merely has a screw to lock its position; note also the screw is not captive, so care should be taken not to fully loosen it and risk loss.As a further example of compatibility issues: I intended to use this stop bar for mounting a guide-scope to a Desmond DAL-1 L bracket on my Nikon D7100. Firstly, to mount the bar required removing one of the safety screws on the L bracket, so I chose the top one as the screw safer to leave removed rather than fussing with it every time I want to mount/remove the guide scope. But, the SSB-02 would not fit onto the open-end dovetail of the L bracket. So, I removed the lower safety screw and found the SSB-02 will fit...a close fit but an accurate one, such that the stop bar with only a slight bit of twisting force on it, as if an off-center weight was pulling on it, was seizing up and not slipping off. That's good, helping reduce the risk of an unsecured scope suddenly falling off, but it remains very important to properly secure the set screw and eliminate such risk. I further saw that while I could slide the stop bar up the dovetail, it seized up at about the midpoint, telling me that the DAL-1 L bracket had a machining inaccuracy such that the dovetail bevel may not be uniform. Interestingly, in checking the fit of the SSB-02, I found that I could more forcibly push it along the dovetail until it was about 3/4 up the L bracket and, after having done so, the SSB-02 then slipped on and off a bit more easily, actually making it easier to use, suggesting that perhaps the dovetail bevel actually spread the stop bar's inner bevel just a very small yet sufficient amount. In the end, I still favor the Leofoto DC-12, but can definitely make use of the Sunwayfoto SSB-02 for the intended purpose at a lower cost, so that's a win!

同社のレンズサポート YLS-01と併用しています。ネジ止めですので普通のアルカスイスの様な挟み込むタイプではありませんので注意が必要です。

I wanted this to create a positive lock on my arca rail and stop equipment from sliding off. This product will do this with 2 issues, it must be slid on from an arca rail end since it does not expand larger than the rail and when tightening this to a rail the locking screw digs directly into the arca rail itself. Considering the price I will keep it in my tool bag if I need it in the future but I won't be installing it on my $300 arca rail.

α7Ⅳを入手しましたが・・・このカメラに限らずバリアングル液晶とUSBケーブル・・・結構干渉します。とは言え、ケーブルは何とか固定したいもの。で、この超小型のSSB-02に目をつけました。自作の白いアルミパーツを1/4インチネジで取り付ければ完成です。結果は取り敢えず上々でしょうか？若干邪魔にはなるのですが、使えてます。なるべくボディから離して固定することで液晶の可動範囲が広がります。勿論、自作のパーツではなく市販のケーブルクランプを固定することもできるでしょう。

This is not spring loaded so it is hard to install. It has to be inserted from the side. My bar has a screw on the sides. I need to remove the screw to insert this. Then I cannot take it in and out. Too much money for what this is. Edit to add: I found better stops from Leofoto that are adjustable and work well.